2025
Increasing rat numbers in cities are linked to climate warming, urbanization, and human population
Richardson J, McCoy E, Parlavecchio N, Szykowny R, Beech-Brown E, Buijs J, Buckley J, Corrigan R, Costa F, DeLaney R, Denny R, Helms L, Lee W, Murray M, Riegel C, Souza F, Ulrich J, Why A, Kiyokawa Y. Increasing rat numbers in cities are linked to climate warming, urbanization, and human population. Science Advances 2025, 11: eads6782. PMID: 39888984, PMCID: PMC11784805, DOI: 10.1126/sciadv.ads6782.Peer-Reviewed Original ResearchConceptsRat numbersHuman populationSeasonal activity periodFuture management strategiesMitigation needsFood availabilityFuture vulnerabilityLong-term trendsPublic complaintsBiological impactClimate warmingEnvironmental changesWarmer temperaturesCommensal pestsManagement strategiesCityRat populationsWashington D.C.Estimate trendsUrbanizationNew YorkUrban ratsActive periodIncreasing trendWarming
2015
Patterns in Leptospira Shedding in Norway Rats (Rattus norvegicus) from Brazilian Slum Communities at High Risk of Disease Transmission
Costa F, Wunder EA, De Oliveira D, Bisht V, Rodrigues G, Reis MG, Ko AI, Begon M, Childs JE. Patterns in Leptospira Shedding in Norway Rats (Rattus norvegicus) from Brazilian Slum Communities at High Risk of Disease Transmission. PLOS Neglected Tropical Diseases 2015, 9: e0003819. PMID: 26047009, PMCID: PMC4457861, DOI: 10.1371/journal.pntd.0003819.Peer-Reviewed Original ResearchConceptsLeptospiral loadHuman infectionsNorway ratsEssential epidemiological informationAge of ratsSpirochetal loadPositive kidneysLeptospiral carriageMAT titersHigh riskLeptospiral infectionEpidemiological informationSignificant positive correlationUrine samplesRatsInfectionMultivariate modelingUrineDisease transmissionKidneyRiskGenome equivalentsSlum communitiesRat populationsLeptospires
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